Here's a snippet from another site debunking the giants hoax:
Different levels of sharpness or blur in different parts of image is obvious sign that the image is fake. Also abrupt color changes, mismatching shadow directions and micro level details like hand grips, immediately give away faked image.The site then posts the letter.
For all those who still believe there was such a skeleton found , here is the final chapter in the story of Skeleton.
Not all of us take forwarded email as final word of God. One of such rational enthusiasts is Harikumar P. He contacted Archaeological Survey of India and asked them directly about this skeleton. He got letter from Superintendent of ASI , explicitly denying any such finding in India.